Gutted Precats

Headers » Performance

Last Updated: January 1, 2008

Also known as the "Mystery Mod" this mod removes the catalitic material from our exhaust manifolds. The "precats" are mainly used to help with cold start emmissions but are not needed once your main catalitic converter comes up to temprature. You should have no problems with emission testing, but this modifcation is illegal. If you do get caught you could face fines up to $50,000, but the likely hood of this happening is very, very slim. For about the same power gains as headers but without the huge pricetag, the best part of this mod is the price, how does FREE sound to you. Check out the howto here.